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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Beckmann, F.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2023Analysis on the influence of vapor capillary aspect ratio on pore formation in laser beam welding of aluminumcitations
- 2021Real-time stress evolution during laser surface line hardening at varying maximum surface temperatures using synchrotron X-ray diffractioncitations
- 2016Hot tearing characteristics of Mg–2Ca–xZn alloyscitations
- 2015Hot Tearing Susceptibility of Mg-Ca Binary Alloyscitations
- 2015Effect of Zn addition on hot tearing behaviour of Mg–0.5Ca–xZn alloyscitations
- 2014The High Energy Materials Science Beamline (HEMS) at PETRA IIIcitations
- 2014Combining micro computed tomography and three-dimensional registration to evaluate local strains in shape memory scaffoldscitations
- 2014Development and Characterization of B4C Reinforced Detonation-Sprayed Al Coatingscitations
- 2014Assessing the grain structure of highly X-ray absorbing metallic alloyscitations
- 2013Hot tearing susceptibility of binary MgY alloy castingscitations
- 2012Analysis of wood microstructure by synchrotron radiation-based Xray microtomographycitations
- 2012Low cycle fatigue damage mechanism of the lightweight alloy Al2024citations
- 2011Characterization of Hydrogen Storage Materials and Systems with Photons and Neutronscitations
- 2011In situ studies of light metals with synchrotron radiation and neutrons
- 2009Catalysts at work: From integral to spatially resolved X-ray absorption spectroscopycitations
- 2008Experimental determination of strain partitioning among individual grains in the bulk of an aluminium multicrystalcitations
- 2008Experimental determination of strain partitioning among individual grains in the bulk of an aluminium multicrystalcitations
- 2008Three-dimensional microstructural analysis of Mg–Al–Zn alloys by synchrotron-radiation-based microtomographycitations
- 2008Thermal degradation of polyetherimide joined by friction riveting (FricRiveting). Part 1: Influence of rotation speedcitations
- 2008Thermal degradation of polyetherimide joined by friction riveting (FricRiveting). Part I: Influence of rotation speedcitations
- 2006Visualizing the complex morphology of fatigue cracks in voxel-based 3D datasetscitations
- 2006Tomographical Imaging and Mathematical Description of Porous Media Used for the Prediction of Fluid Distributioncitations
- 2006In vitro and in vivo corrosion measurements of magnesium alloyscitations
- 2006Functional morphology of Tethya species (Porifera): 2. Three-dimensional morphometrics on spicules and skeleton superstructures of T-minutacitations
- 2006Functional morphology of Tethya species (Porifera): 2. Three-dimensional morphometrics on spicules and skeleton superstructures of T. minutacitations
- 2005Effect of tool geometry and process parameters on material flow in FSW of an AA2024-T351 alloycitations
- 2004Measurement of the components of plastic displacement gradients in three dimensionscitations
- 2004Measurement of the components of plastic displacement gradients in three dimensionscitations
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document
Measurement of the components of plastic displacement gradients in three dimensions
Abstract
A method for non-destructive characterization of plastic deformation in bulk materials is presented. The method is based on X-ray absorption microtomography investigations using X-rays from a synchrotron source. The method can be applied to materials that contain marker particles, which have an atomic number significantly different from that of the matrix material. Data were acquired at the dedicated microtomography instrument at beamline BW2 at HASYLAB / DESY, for a cylindrical aluminium sample containing W particles with an average particle diameter of 7 mum. The minimum detectable size of the maker particles is 1-2 mum with the present spatial resolution at HASYLAB. The position (x,y,z) of all the detected marker particles within 1 mm(3) was determined as function of strain. The sample was deformed in stepwise compression along the axis of the cylinder. A tomographic scan was performed after each deformation step. After a series of image analysis steps to identify the centre of mass of individual particles and alignment of the successive tomographic reconstructions, the displacements of individual particles could be tracked as a function of external strain. The particle displacements are then used to identify local displacement gradient components, from which the local 3D plastic strain tensor can be determined. This allows us to map the strain components as a function of location inside a deforming metallic solid.